Java调用构造函数

Question

我创建了一个测试项目，但我遇到了一些我不能理解的事情。

我正在试着给FightManager里的怪物打电话。我希望怪物的变量(name，health，damage和defense)等于任何随机的怪物(WolfMonster或GoblinMonster)

以前我只有一个怪物，我设法做到了，但是现在有两个怪物，如果选择了不同的怪物，我怎么能给变量传递一个不同的值呢？

public class Units {
    int health;
    int damage;
    int defense;
    String name;

    public boolean isAlive(){
        if(health >= 1){
            return true;
        }else{
            return false;
        }
    }
}

public class Monster extends Units{
    public Monster(String name,int health,int damage,int defense){
        this.name = name;
        this.health = health;
        this.damage = damage;
        this.defense = defense;
    }
}

public class GoblinMonster extends Monster {
    public GoblinMonster(String name, int health, int damage, int defense) {
        super("Goblin",50,5,6);
        this.name = name;
        this.health = health;
        this.damage = damage;
        this.defense = defense;
    }
}

public class WolfMonster extends Monster {
    public WolfMonster(String name, int health, int damage, int defense) {
        super("Wolf",50,5,6);
        this.name = name;
        this.health = health;
        this.damage = damage;
        this.defense = defense;
    }
}

public class FightManager {

    GameManager manage = new GameManager();
    Player player = new Player("Player",100,10,5);
    GoblinMonster gobli = new GoblinMonster("Goblin", 40, 7, 4);
    WolfMonster wolf = new WolfMonster("Wolf",50,9,6);

    boolean myTurn = true;
    ....

我想知道如何根据生成的怪物来分配怪物的值。

Answer 1

我不认为这里需要多个子类和父单元类。你可以简单地创建不同的怪物对象，命名为WolfMonster，GoblinMonster。

public class Monster {
    int health;
    int damage;
    int defense;
    String name;

    Monster(String name, int health, int damage, int defense)
    {
        this.name = name;
        this.health = health;
        this.damage = damage;
        this.defense = defense;
    }
    public boolean isAlive()
    {
        if(health >= 1){
            return true;
        }else{
            return false;
        }
    }    
}

public class FightManager {

    GameManager manage = new GameManager();
    Player player = new Player("Player",100,10,5);

    //changes

    Monster gobli = new Monster("Goblin", 40, 7, 4);
    Monster wolf = new Monster("Wolf",50,9,6);

    boolean myTurn = true;

    // To-Do
}

Answer 2

也许你想要做的是在每个构造函数中将"name“设置为一个常量。

例如，WolfMonster将为：

public class WolfMonster extends Monster {
    public static String TYPE = "Wolf";
    public WolfMonster(int health, int damage, int defense) {
        super(WolfMonster.TYPE,health,damage,defense);
    }
}

请注意，您不需要重新指定成员字段，因为将在调用super()时分配。

Answer 3

为此，您必须使用多态性，通过将单元类声明为接口.The方法isAlive()作为抽象以及属性.In，另一方面，Monster类应实现Unit接口，其余的Monster类将扩展classe monster。